# Mathematics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 467 - 474 of 989

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## Question 467

Mathematics
Edit

### Question

MCQ▾

In a if , , then perimeter of the triangle is

### Choices

Choice (4)Response

a.

73 cm

b.

54 cm

c.

61 cm

d.

None of the above

## Question 468

Mathematics
Edit

### Question

MCQ▾

If a coin is tossed twice, the probability of getting at least one tail is

### Choices

Choice (4)Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question 469

Mathematics
Edit

### Question

MCQ▾

If is divided by 17 then the remainder is

### Choices

Choice (4)Response

a.

-2

b.

-1

c.

0

d.

1

## Question 470

Mathematics
Edit

### Question

MCQ▾

The area of a triangle whose sides are 12,13 and 15 cm.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 471

Edit

### Question

MCQ▾

A cylindrical vessel of diameter 12 cm is partly filled with water. 120 lead balls are dropped in it. The raise in water level is 0.8 cm. The diameter of each ball is ________.

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 472

Edit

### Question

MCQ▾

If and is the solution of the equation , then the value of ‘k’ is ________.

### Choices

Choice (4)Response

a.

5

b.

-11

c.

10

d.

-1

## Question 473

Mathematics
Edit

### Question

MCQ▾

Rational number between and is

### Choices

Choice (4)Response

a.

b.

c.

1.98

d.

2.8

## Question 474

Mathematics
Edit

### Question

MCQ▾

Two chimneys 16 m and 10 m high stand upright in a ground. If their feet are 8 m apart, then the distance between their tops is

### Choices

Choice (4)Response

a.

10 m

b.

24 m

c.

18 m

d.

26 m